In the hours prior to the checkpoints, several vehicles are known to have left the area. Since the establishment of checkpoints, a total of eight people have left the refuge. Of those, the FBI released five and arrested three.

At approximately 3:30 pm, the FBI made probable cause arrests of Duane Leo Ehmer, age 45, of Irrigon, Oregon, and Dylan Wade Anderson, age 34, of Provo, Utah. At approximately, 7:40 pm, agents made a probable cause arrest of Jason S. Patrick, age 43, of Bonaire, Georgia.